1
JEE Main 2020 (Online) 9th January Morning Slot
Numerical
+4
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108 g of silver (molar mass 108 g mol–1) is deposited at cathode from AgNO3(aq) solution by a certain quantity of electricity. The volume (in L) of oxygen gas produced at 273 K and 1 bar pressure from water by the same quantity of electricity is _______.
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2
JEE Main 2020 (Online) 9th January Morning Slot
Numerical
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-0
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The molarity of HNO3 in a sample which has density 1.4 g/mL and mass percentage of 63% is _____.
(Molecular Weight of HNO3 = 63)
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3
JEE Main 2020 (Online) 9th January Morning Slot
Numerical
+4
-0
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The hardness of a water sample containing 10–3 M MgSO4 expressed as CaCO3 equivalents (in ppm) is ______.
(molar mass of MgSO4 is 120.37 g/mol)
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4
JEE Main 2020 (Online) 9th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
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The major product (Y) in the following reactions is : JEE Main 2020 (Online) 9th January Morning Slot Chemistry - Hydrocarbons Question 101 English
A
JEE Main 2020 (Online) 9th January Morning Slot Chemistry - Hydrocarbons Question 101 English Option 1
B
JEE Main 2020 (Online) 9th January Morning Slot Chemistry - Hydrocarbons Question 101 English Option 2
C
JEE Main 2020 (Online) 9th January Morning Slot Chemistry - Hydrocarbons Question 101 English Option 3
D
JEE Main 2020 (Online) 9th January Morning Slot Chemistry - Hydrocarbons Question 101 English Option 4
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